1, parents and children have the desire and motivation to carry out treatment, children need some willpower, good compliance, and the attitude of parents determines the behavior of the child. It is an alternative to non-bracketed orthodontic treatment with indications. 2, move the teeth only 1.7 grams of sustained force, aligners, although soft, but the force is enough to move the teeth, but it is because the aligners are soft, the teeth move faster, less damage to the teeth, including fixed aligners now also advocate light force treatment, does not advocate gravity, the force of the teeth instead move slowly, the roots of the teeth are easy to resorb. And soft orthodontic appliances are easier for children to adapt. 3, the age and the age of the teeth are not the same, the choice of the Maiou muscle series can not be based on age alone. 4, on time follow-up, usually 1-3 months to review once. 5, can not feel good results on their own to stop wearing, because there is a risk of relapse and loss of treatment results. 6, some orthotics can not be worn for a long time, follow medical advice to stop wearing or replace. 7, people daily unconscious swallowing saliva secreted by salivary glands 1000-1500 ml, more day and less night, after the first wear wear aligners saliva increase, do not spit out, need to swallow saliva, swallowing saliva aligners will produce a greater force on the teeth, aligners wear habit, saliva secretion tends to normal. Maiou muscle series tasteless, will not decolorize in water, choose medical-grade materials, do not wear counterfeit imitation products. 8, some complex cases of Mc鸥 muscle series can reduce the severity, sometimes need to be further treated with fixed orthodontic appliances. Can reduce the complications of fixed orthotics part.